12054434220 has 144 divisors (see below), whose sum is σ = 36873494112. Its totient is φ = 3187537920.

The previous prime is 12054434219. The next prime is 12054434221. The reversal of 12054434220 is 2243445021.

12054434220 is a `hidden beast` number, since 1 + 2 + 0 + 5 + 4 + 434 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (12054434219) and next prime (12054434221).

It is not an unprimeable number, because it can be changed into a prime (12054434221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16444974 + ... + 16445706.

Almost surely, 2^12054434220 is an apocalyptic number.

12054434220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12054434220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18436747056).

12054434220 is an abundant number, since it is smaller than the sum of its proper divisors (24819059892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12054434220 is a wasteful number, since it uses less digits than its factorization.

12054434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 12054434220 its reverse (2243445021), we get a palindrome (14297879241).

The spelling of 12054434220 in words is "twelve billion, fifty-four million, four hundred thirty-four thousand, two hundred twenty".